Transcript IPY期間のICESTAR／IHY計画に呼応した宙空圏観測計画 門倉 昭
ＩＰＹ（国際極年）２００７－２００８における ＩＣＥＳＴＡＲ／ＩＨＹ計画
門倉 昭（極地研）
IPY2007-2008
1st IPY (International Ploar Year) (1882-1883) 12 countries participated 2nd IPY (1932-1933) 40 countries participated IGY (1957-1958) 67 countries & 80,000 scientists countries Common instruments and data processing Established the WDC system IPY2007-2008 (March 2007 - March 2009) ICSU and WMO cosponsoring ICSU :
The International Council for Science
WMO : World Meteorological Organization http://www.ipy.org/
Objectives of IPY 2007-08
• Utilise the vantage point of the polar regions to carry out an intensive and internationally coordinated research activities and observations.
• Leave a legacy of observing sites, facilities and systems to support ongoing polar research and monitoring • Strengthen and enhance international collaboration and co operation in polar regions research and monitoring • Address both polar regions and their global interactions • Link researchers across different fields to address questions and issues lying beyond the scope of individual disciplines • Ensure data collected under the IPY are made available in an open and timely manner • Attract, engage and develop a new generation of polar researchers, engineers and logistics experts • Engage the awareness, interest and understanding of schoolchildren, the general public … ..
IPY計画作成へ向けての流れ
２００５年１月： EOI (Expression Of Intent)提出 総数は９００件以上。日本からの２９件 ＥＯＩを５５の群に分類 ２００５年６月末： 群単位で本計画書提出 ２００５年８月： 本計画の審査。中核計画の選定
国際極年2007-2008 国内委員会ニュースレター
ＩＣＥＳＴＡＲ／ＩＨＹ計画
ICESTAR:
Interhemispheric Conjugacy Effects in Solar-Terrestrial and Aeronomy Research
IHY:
International Heliophysical Year
どちらも
IPY
の
EoI (Expression of Intent)
として 提案されたもの。２つ合わせて、
ICESTAR/IHY
として、１つの傘テーマとなった。
ＩＣＥＳＴＡＲ
The improved bi-polar observation capabilities will yield unprecedented opportunities to study especially the following topics: Quantifying and understanding the differences between the Northern and Southern polar upper atmospheres, under the varying influence of the solar electromagnetic radiation and of the solar wind.
similarities and Quantifying the effects on the polar ionosphere and atmosphere of the magnetospheric electromagnetic fields and plasma populations, from the radiation belts to the tail plasma.
Quantifying the atmospheric consequences of the global electric circuit and further understanding the electric circuit in the middle atmosphere as guided by the electric fields generated at the solar wind-magnetosphere interface.
ＩＣＥＳＴＡＲ
will
coordinate
multinational research on teleconnection between the magnetosphere and ionosphere, and on the interhemispheric conjugate relationships.
ＩＣＥＳＴＡＲ
To facilitate the international collaboration and data sharing according to modern information management techniques, ICESTAR will establish a
portal
on the World Wide Web for geospace data and metadata and for tools to extract and reduce these data into value-added products. The portal will appear as a set of
Virtual Observatories
introduced in the Electronic Geophysical Year as concept (http://www.egy.org).
IHY Discover the physical mechanisms at work which couple the Earth to events in the heliosphere.
Coordination of Scientific Campaigns: Review community proposals for IHY campaigns, Coordinate the input from spacecraft/observatory representatives, and Maintain the observing and campaign schedule.
Scientific Meetings and Publications: Arrange for the communication of scientific results to the broader science community, through meetings and coordination of campaign activities.
Public Outreach: Responsible for increasing public awareness of IHY activities, through the publication of newsletters, maintaining the website(s), writing articles, coordinating media affairs, and developing outreach products.
ICESTAR/IHY に含まれた、 NIPR からの EoI
EoI #422 Interhemispheric Study on Conjugacy and Non conjugacy of Auroral and Polar Ionospheric Disturbances using Ground-based Observation Network Interhemispheric Study on Auroral Phenomena Lead contact : Akira Kadokura
ICESTAR/IHY に含まれた、 NIPR からの EoI
EoI #550 Coordinated radar studies of the Arctic and Antarctic middle and upper atmosphere during IPY-4 period (CRSAAMU) Radar studies of the Arctic and Antarctic middle and upper atmosphere Lead contact: Takehiko Aso
ＩＰＹ期間のＩＣＥＳＴＡＲ／ＩＨＹ計画に呼応した 宙空圏観測計画 南北両極を意識したネットワーク観測の充実 ・昭和基地－アイスランド共役点観測 ・無人磁力計ネットワーク観測 （ Ⅶ 期の間に１０点） ・ SuperDARN レーダー網 ・イメージングリオメータネットワーク ・南極点－カナダ域、中山基地－スバールバル 国際的な Data Portal 、 Vertual Observatory 計画への貢献 ・準リアルタイムデータ取得 ＆ データベース作成 ＆ 公開
Mapping of Northern/Southern hemispheres with geomagnetic coordinate
Conjugate point of Syowa Station (IGRF model) Comparison of geomagnetic parameters (Epoch: 23:20:00 UT, 26 Sep, 2003) Station Glat (deg) Glon (deg) Inv.lat (deg) Mlon (deg) MLT (hr) at 0.0 UT L value D (deg) I (deg) B (nT) Tjornes 66.20
-17.12
66.41
71.26
23.46
6.25 -16.21
76.57
52321 Syowa -69.00
39.58
66.27
71.75
23.49
6.17
-48.68
-63.61
43178
Instruments at conjugate stations SYOWA Fluxgate magnetometer Induction magnetometer Riometer VLF receiver Imaging Riometer All-sky TV camera All-sky monochromatic Imager Meridian Scanning Photometer Fabry-Perot Imager SuperDARN radar MF-radar Ionosonde Multi-beam VHF Doppler radar Iceland ○ ○ ○ ○ ○ ○ (only equinox) ○ (from 2005) ○
Antarctic International Magnetometer Network (AIMNet) Mervyn Freeman (British Antarctic Survey) .
• • • • Enhance existing Antarctic magnetometer base through coordination: – ~20 mag ’ s at national bases – 6 US AGO mag ’ s in field – 11 UK and 4 Japanese low power mag ’ s in field Deploy new LPM clusters within 500 km of national stations/sites – e.g., Italian proposal for 6 LPMs – What if others did same?
– LPMs available from BAS under contract (~$20k/unit) Individual mag ’ s owned and operated by individual nations with full autonomy All data accessible through BAS virtual hub.
Unmanned magnetometers in JARE 90 E 0 M ap area 90 W 180
Belgian New Station
１ S 1 6 ２ H 1 5
H100
３ 1 H 2 60 1 2 2 M D 1 2 0 300 0m M D 2 4 0 M D 3 M D 3 6 4 （中継拠点） M D 5 0 0 75 S M D 6 2 0 3800m ４ 4 観測拠点 2000m 70 S 調査ルート 雪氷基本観測点 20 E 0 30 E 40 E 50 E 80 S 5 00 k m 45次内陸調査ルート
JARE-44 (2003) BAS-LPM
① Skallen [-69 ° 40′24″, 39 ° 24′07″E] 2003.1/15 ~ 2003.10/14 ② Cape Omega [-68 ° 34′39.4″, 41 ° 04′54.1″E] 2003.1/31 ~ 2004 1/28 ③ H100 [69 ° 17'44"S, 41 ° 19'15"E] 2003.1/2 ~ 2003.10/22 ④ Dome Fuji [ 77 ° 19'01"S, 39 ° 42'12"E ] 2003.2/6 ~ 2003.5/29, 2003.12/11-2004.6/9
JARE-45 (2004) BAS-LPM
① H100 [69 ° 17'44"S, 41 ° 19'15"E] 2004.8/18 ~10/20, 10/20~ ② Mizuho [70 ° 42‘7.7"S, 44 ° 17‘4.1"E] 2004.10/18 ~ ③ Middle Point [74 ° 00’37.0"S, 42 ° 59’30.4"E] 2004.10/29 ~ ④ Dome Fuji [77 ° 19'01.6"S, 39 ° 42’31.7"E] 2004.12/22 -
JARE-46 (2005) NIPR-LPM
① S122 [70 ° 01'16"S, 43 ° 07'39"E] ② MD120 [71 ° 49'38"S, 44 ° 16'27"E]
JARE-45 BAS-LPMs are continued.
Comparison of BAS and NIPR type LPMs Magnetometer Resolution Noise level Low Pass Filter Power consumption (1 sec sampling) Data acquisition Command sending BAS-LPM MAG-03MC 16 bit 1 nT 100 Hz NIPR-LPM MAG-03MC 16 bit 0.2 nT 15 Hz 0.42 W 0.16 W Flash memory card Iridium satellite Flash memory card × ○
HF-radar network in the both hemisphere （ SuperDARN ）
南極点基地における全天オーロライメージャ観測 Sanae Halley Bay 昭和第一 高度 120km 相当の南極点基地イメージャーの視野 高度 120km に投影した波長 557.7nm( 緑 ),630.0 nm( 赤 ) のオーロラ
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